Shipping drum



Dec. 4, 1928. 1,694,354

C. H. ROLLASON SHIPPING DRUM Filed Oct. 15, 1927 INVENTOR l atented Dec. 4, 1928.

CHARLES notnason, or wrrnnnrne, wnsr vino-litre, ASSIGNOR r0 WHEELING- s'rnnn conroaarron, or WHEELING, wuss vrneinra, a conrona'rronor DELA- WARE.-

SHIPPING DRUM.

Application filed Gctober 13, 1927, Serial No. 225,908.

. This invention relates broadly to sheet metal barrels or drums, and more specifically to a removable closure for suchcontainers.

The primary object of the invention is to provide a sheet metal drum adaptedfor use as a container for chemicals in powder form, embodying a head provided with an 1mproved form of removable closure which may be conveniently applied and removed and which, when in position, is practically proof against leakage of its powder contents.

A further object is to provide a removable cover for drums which may be conveniently removed without distortion thereof and which, consequently, is adapted for re-use.

In describing the invention in detail, reference is herein had to the accompanying drawings, in which Figure 1 is a head end elevation of a metal lic drum embodying my invention;

Figure 2 is a partial section on line 22, Fig. 1;

Figure 3 is an enlarged detail yiew, 111 top plan, of a portion of the retaining ring; and

Figure 4 is an enlarged detail section illustrating the joint between the drum head and the closure.

Referring to said drawings, 1 designates the body, and 2 the head, of a sheet metal barrel or drum, said head being seamed or otherwise suitably attached to said body. Provided in the head 2, preferably in a central loca tion, is a circular opening through which access is had to the interior of the drum for the introduction and removal of the powdered chemical or other material which constitutes the contents of the drum. Said openingis defined by a flange which depends vertically from a horizontal ledge a formed on the barrel head and disposed in a plane below the main body portion of said head. Said ledge is the lower of two relatively spaced parallel members, the upper member 5 having materially less width than said ledge and being located in underlying seated relation to the adjacent edge portion of the main body of the head, as shown in Figs. 2 and 4. Sald member 5, lodge a and flange 3 are integral parts of the head 2, the latter having its inner edge portions bent to shape said parts. The outer portion of the lower member or ledge 4 is joined-tothe corresponding portion of the upper member 5 by anarcuate bend-6 formed in the metal, asshown.

The inner edge portion of the ledge tconstitutes a seat adapted to receive thereona such narrow Width that introductionandremoval of the closure Spast the line ofjunction of the member 5 with the main body of the drum head 2 is readily permitted.

For securing the closure in its aforesaid seated position, an expansible retaining ring 10 of split, or open, form is provided, said ring consisting of a circular vertically disposed band 10 having formed on the upper edge portion thereof an integral horizontal annular flange 10 Said ring in its contracted form is adapted for introduction to a position in which its band portion 10 is received loosely within the embrace of theupright wall 8 of the closure 9 with its flange 10 seated upon the flange? of the, closure. Following suchintroduction, the ring is expanded to seat its hand portion closely against said neck and to project the edge of its flange portion beneath the member 5 of the head, as shown in Figs. 2 and 4, in which position said ring is effectually held against chance displacement.

The ledge 4 is spaced from the overhanging member 5 a distance substantially equal to the combined thicknesses of the closure seating flange 7 and the ring flange 10". Thus, when the retaining ring is expanded into place, its

flange 10 assumes closely underlying relation panded to its closure retaining position by flattening the bow of said strap against the band portion of the closure, effected by means of a hammer or other suitable form of tool. To Withdraw the retaining ring for releasing the closure, the edge of a screw driver or other suitable instrument may be introduced between the strap 11 and the acentwall of the ring and employed to pry said strap into bowed form for eltectin the re uired conpendent of the ring and having each of its ends rigidly atlixed to the respective ends of the ring and having a central portion'bowed toward the center of the ring and bridging the space between the ring ends, said strap being formed of malleable material so as to cause same to be flattened against the ring to expand the latter by the delivery of blows against the bowed portion of the strap.

2. A sealing device for use with receptacles having seats of substantially C-form in crosssection and having covers with a peripheral portion of the latter engaged in said seats, comprising a split ring having a part engaged between the cover and a wall of the seat, and an integral malleable element formed independent of the ring and rigidly secured at its ends to the respective ends of the split ring and having a displaceable part formed to receive hammer blows so as to be flattened for the purpose of expanding the ring.

' S. A sealing device for receptacle covers, comprising a split ring engageable with the receptacle and cover, and an integral malleable element formed separately from said ring and rigidly secured at its ends to the respective ends of the split ring and having displaceable part formed to receive hammer blows so as to be flattened for the purpose of expanding the ring 7 In testimony whereof, I afliX my signature.

CHARLES H. ROLLASON. 

